CNBC is revamping its morning lineup, including a worldwide business news program with anchors in New York, London and Singapore. Squawk Box will expand to four hours, although popular anchor Mark Haines is being cut back to one hour on the air.

CNBC is revamping its morning lineup, including a worldwide business news program with anchors in New York, London and Singapore. Squawk Box will expand to four hours, although popular anchor Mark Haines is being cut back to one hour on the air.